A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6145-01-364-0346
NSN 5990-01-129-7701
NSN 7035-00-849-5526
NSN 5910-00-357-0988
NSN 5835-01-227-2318
NSN 6650-00-195-7519
NSN 5996-01-200-4128
NSN 6620-00-833-6786
NSN 5965-00-121-7569
NSN 5999-01-352-7940
NSN 5975-01-523-5360
NSN 5999-00-932-3690